Jeffrey D. Sachs is the Director of The Earth Institute and Professor of Health Policy and Management at Columbia University. He is also Special Advisor to United Nations Secretary-General Ban Ki-moon. From 2002 to 2006, he was Director of the UN Millennium Project and Special Advisor to United Nations Secretary-General Kofi Annan. For more than 20 years Professor Sachs has been in the forefront of the challenges of economic development, poverty alleviation, and enlightened globalization, promoting policies to help all parts of the world to benefit from expanding economic opportunities and wellbeing. He is author of hundreds of scholarly articles and many books, including Common Wealth (Penguin, 2008) and The End of Poverty (Penguin, 2005).